Everton striker Andy Johnson has an ankle injury and has been ruled out of England's Euro 2008 qualifiers against Estonia and Russia next week.
The England striker - who only returned to the Everton team on Sunday following a groin injury - looks set to be out for at least three weeks.
He had looked sharp when he came on for the second-half in the Toffees' 3-2 defeat at Newcastle.
And he topped off a fine performance with a close range goal from a Leighton Baines cross.
But Everton boss David Moyes revealed after the game that Johnson required surgery.
Moyes said: "He is having an ankle operation tomorrow. He will be out for probably three to four weeks.
"It is a big blow for Everton. We have known for a wee while he has had a problem with his ankle, and he has also been carrying a groin injury, which kept him out recently.
"With the international break - unfortunately for England - it is probably the best time to get his ankle sorted now.
"It's something we have known about for a week or two.
"We just know he has got a problem and Andy wants it sorted, so we have to get that done."
It was a miserable afternoon for the Everton boss, who was unhappy with his side's first-half performance and their defending for the goals.
He will hope to iron out problems ahead of their next game - the Merseyside derby against Liverpool at Goodison Park on 20th October.